CN106657123A - Live broadcast time shifting scheme based on hls protocol - Google Patents
Live broadcast time shifting scheme based on hls protocol Download PDFInfo
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- CN106657123A CN106657123A CN201611271879.9A CN201611271879A CN106657123A CN 106657123 A CN106657123 A CN 106657123A CN 201611271879 A CN201611271879 A CN 201611271879A CN 106657123 A CN106657123 A CN 106657123A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4333—Processing operations in response to a pause request
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
Abstract
The invention discloses a live broadcast time shifting scheme based on an hls protocol. The live broadcast time shifting scheme comprises a monitoring module, a first computing module, a first filtering module, a storage module, a second filtering module, a second computing module and an integration module, the switch of time shifting playback and live broadcast playback is realized by simple parameter control, no database is realized by a unique position storage principle, and the efficiency of processing a time shifting request is improved.
Description
Technical field
The present invention relates to a kind of direct broadcast time-shift scheme based on hls agreements.
Background technology
The database purchase slice position mode that common time shift is adopted, dependence is high, and database interaction is too many, and impact is processed
Performance.
The content of the invention
It is an object of the invention to overcome of the prior art not enough and provide a kind of direct broadcast time-shift side based on hls agreements
Case.
For achieving the above object, on the one hand, the present invention provide a kind of direct broadcast time-shift scheme based on hls agreements, including
Monitoring modular, the first computing module, the first filtering module, memory module, the second filtering module, the second computing module and integration mould
Block,
Monitoring modular is used to record the change of live source,
First computing module be used for by the section name translation of live generation be the peculiar title of time-shifted service, and first calculate
Module is used to for current live source to make unique mark,
First filtering module is used to filter the time point belonging to section, and the section of same period is made to unify
Storage is processed,
Memory module is used to the section after the first computing module and the first filtering module are processed file and cache
Process,
Second filtering module is used to filter time shifting request parameter and checking parameter validity,
Second computing module is used to calculate the slice position of required time shift for the time parameter of request,
Integrating module is used to update the section path for getting.
Preferably, monitoring modular monitors the m3u8 files of live source and judges whether to generate new ts sections, new when generating
Ts section be then considered as live source change and record.
It is simple sharp due to without the need for data base system according to a kind of direct broadcast time-shift scheme based on hls agreements that the present invention is provided
The features such as being positioned with position storage and correlation computations, can greatly improve the treatment effeciency of time shift.
Description of the drawings
Fig. 1 is a kind of logical blocks figure of direct broadcast time-shift scheme based on hls agreements of one embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, by reference to accompanying drawing
The embodiment of description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
One embodiment of the invention provides a kind of direct broadcast time-shift scheme based on hls agreements, including time-shifted service stage
Monitoring modular, the first computing module, the first filtering module, memory module, and obtain the second filter module of section service stage
Block, the second computing module, integration module.
As shown in figure 1, the logical blocks figure of the direct broadcast time-shift scheme for the present invention.
The synchronous averaging time-shifted service in live startup.
The monitoring modular of time-shifted service is used to observing and recording the change of live source, after transferring to after the content for recording change
Continuous resume module.
Specifically, the monitoring modular of time-shifted service is monitored to the m3u8 file contents of live source, determines whether new
Ts sections generate, determination methods are contrasting, because in memory module according to last ts files sequence number in m3u8 files
Last ts section sequence number of each storage can be recorded, if the currently monitored module has the ts for monitoring the sequence number more than storage
Information, is judged as newly-generated section, records and gives subsequent module for processing.
First computing module of time-shifted service is used for the section name translation of live generation into the distinctive name of time-shifted service
Claim, be made up of information such as section time point, section duration, section sequence numbers, while using current live source url as this subtask
Unique mark.
Specifically, the first computing module of time-shifted service takes the new ts slice informations that monitoring modular is passed over, with reference to
The context-descriptive of section, and according to position store predetermined, the section title for facilitating time shift is calculated, for example：Time file
Folder/second _ section duration _ section sequence number .ts belonging to section, while need definition this time shift task to be designated live source url,
It is mainly used in subsequently according to live url come the affiliated catalogue of located slices.
First filtering module of time-shifted service is mainly filtered to the time point belonging to section, is carried out according to minute
Screening, the section of output per minute carries out unified file folder storage.
Specifically, the first filtering module of time-shifted service is mainly processed the concrete time of section, and will be same
The section of period is made unified storage and is processed.In the present embodiment, minute can be accurate to, the then section to belonging to same minute is carried out
Unified file folder storage is processed, it is ensured that section per minute will not be chaotic.
The memory module of time-shifted service mainly files the section after calculating and filtration, while carrying out at caching
Reason, is all to carry out corresponding section caching for per second during memory buffers so that follow-up time shifting broadcasting is used, and conveniently obtains section
Service is used.
Specifically, the memory module of time-shifted service is obtained in storage by the first computing module, the first filtering module
Need content and the path of storage.It is important that be the use of buffer memory, because document storage system is that section is deposited
Storage, each section has the time difference, if time shift is just asked to the time point between the time difference, needs the row for carrying out file storage
Table returns source inquiry, can affect search efficiency, so in memory buffers, duration and the time for calculating each section is needed,
Add up duration on the basis of the section time, is accurate to the second, that is, ensure that each second in the buffer can find corresponding section
Information, so as to improve time shift efficiency.
Corresponding file storage structure is as follows：
201612050751
--01_3.333_260.ts
--04_3.334_261.ts
--07_3.333_262.ts
--11_3.333_263.ts
Corresponding buffer memory structure is as follows：
20161205075101→201612050751/01_3.333_260.ts
20161205075102→201612050751/01_3.333_260.ts
20161205075103→201612050751/01_3.333_260.ts
20161205075104→201612050751/04_3.334_261.ts
20161205075105→201612050751/04_3.334_261.ts
20161205075106→201612050751/04_3.334_261.ts
20161205075107→201612050751/07_3.333_262.ts
20161205075108→201612050751/07_3.333_262.ts
20161205075109→201612050751/07_3.333_262.ts
20161205075110→201612050751/07_3.333_262.ts
20161205075111→201612050751/11_3.333_263.ts
Operate by more than, time shift preparation has been completed.Description be the following is how by these data arrangement rules
To take corresponding slice information.
The second filtering module for obtaining section service mainly filters the URL parameter that time shift is sent, when starting comprising time shift
Between, playback the end time (optional parameters), checking parameter validity：Contrasted with live time started, time shift maximum duration.
Specifically, if normal time shift viewing, request URL trailing parameter is beginTime, this parameter demonstrate the need for from
This time point proceeds by broadcasting, and this parameter can not can not be later than the live end time earlier than the live time started, can not be with
The time difference of current time, (time-shifted service can arrange this live time shift with dynamic more than the maximum time shift scope that time shift specifies
Scope), containing this parameter return is normal live m3u8 file contents.If needing direct playing and playback to watch, request URL
Trailing parameter needs to add endTime, and this parameter demonstrates the need for the end time point of direct playing and playback, same this parameter verification mode
Identical with beginTime, containing this parameter return is the m3u8 file contents of order video.
The time parameter that second computing module of time shifting request service is primarily directed to ask is calculated and needs cutting for time shift
Piece position, is inquired about if not finding section (the expired situation of caching) and carrying out Hui Yuan (file storage) according to ts sections title.
Specifically, by the time parameter of computation requests, it is converted into the form of time-shifted service storage：
YyyyMMddHHmmss, goes in buffer service to inquire about corresponding ts file paths by key, when finding first ts file, leads to
The duration crossed in the title of ts sections finds by that analogy the ts in regulation m3u8 file calculating the key of next ts section
Section number.If caching expired or caching server to delay machine, need to go back to source from document storage server and obtain, first by working as
Obtain in the file that the time (be converted into and be accurate to the time format of minute) of front request is gone in corresponding document storage server
Take, because each section title has its corresponding number of seconds, if the number of seconds of current request is not in lists, need to request
Number of seconds is overlapped process and inquires about again, until finding corresponding section.
The integration module of time shifting request service mainly updates the section path for getting, if detected playback terminated
Time parameter also needs to finally add endlist labels to show this file for program request file in m3u8 files.
Specifically, integrated service is mainly processed the section that the second computing module is inquired, and is opened in time-shifted service
During the beginning, can be the m3u8 archives of live source, integrating module this file acquisition and can update its content, finally return to.
The URL of normal time shifting request：
http：//XXXX/XXX/xxxx.m3u8BeginTime=20161013065122
The return of normal time shifting request：
#EXTM3U
#EXT-X-VERSION：3
#EXT-X-TARGETDURATION：4
#EXT-X-MEDIA-SEQUENCE：1
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：22Z
#EXTINF：3.333
201610130651/22_3.333_1.ts
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：26Z
#EXTINF：3.333
201610130651/26_3.333_2.ts
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：29Z
#EXTINF：3.334
201610130651/29_3.334_3.ts
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：32Z
#EXTINF：3.333
201610130651/32_3.333_4.ts
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：36Z
#EXTINF：3.333
201610130651/36_3.333_5.ts
The request URL of direct playing and playback：
http：//XXXX/XXX/xxxx.m3u8BeginTime=20161013065122＆endTime=
20161013065136
The request of direct playing and playback is returned：
#EXTM3U
#EXT-X-VERSION：3
#EXT-X-TARGETDURATION：4
#EXT-X-MEDIA-SEQUENCE：1
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：22Z
#EXTINF：3.333
201610130651/22_3.333_1.ts
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：26Z
#EXTINF：3.333
201610130651/26_3.333_2.ts
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：29Z
#EXTINF：3.334
201610130651/29_3.334_3.ts
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：32Z
#EXTINF：3.333
201610130651/32_3.333_4.ts
#EXT-X-PROGRAM-DATE-TIME：2016-10-13T06：51：36Z
#EXTINF：3.333
201610130651/36_3.333_5.ts
#EXT-X-ENDLIST
To sum up, a kind of direct broadcast time-shift scheme based on hls agreements for being provided according to the present invention, by simple state modulator
Come realize time shift review, the switching of direct playing and playback, no data storehouse is realized by distinctive position storage principle, improve time shift
The efficiency that request is processed.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.Although the reality of the present invention has been shown and described above
Apply example, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as limitation of the present invention, this area it is common
Technical staff can enter within the scope of the invention in the case of the principle and objective without departing from the present invention to above-described embodiment
Row change, modification, replacement and modification.
Claims (2)
1. a kind of direct broadcast time-shift scheme based on hls agreements, it is characterised in that including monitoring modular, the first computing module, first
Filtering module, memory module, the second filtering module, the second computing module and integration module,
The monitoring modular is used to record the change of live source,
It is the peculiar title of time-shifted service that first computing module is used for the section name translation of live generation, and described first
Computing module is used to for presently described live source to make unique mark,
First filtering module is used to filter the time point belonging to the section, and will cut described in the same period
Piece is made unified storage and is processed,
The memory module is used for the section after first computing module and first filtering module are processed
File and make caching process,
Second filtering module is used to filter time shifting request parameter and checking parameter validity,
Second computing module is used to calculate the slice position of required time shift for the time parameter of request,
The module of integrating is used to update the section path for getting.
2. a kind of direct broadcast time-shift scheme based on hls agreements according to claim 1, it is characterised in that the monitoring mould
Block monitors the m3u8 files of the live source and judges whether to generate new ts sections, when the ts sections for generating new are then considered as
The change of the live source is simultaneously recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271879.9A CN106657123A (en) | 2016-12-30 | 2016-12-30 | Live broadcast time shifting scheme based on hls protocol |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271879.9A CN106657123A (en) | 2016-12-30 | 2016-12-30 | Live broadcast time shifting scheme based on hls protocol |
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| CN106657123A true CN106657123A (en) | 2017-05-10 |
Family
ID=58838286
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| CN201611271879.9A Pending CN106657123A (en) | 2016-12-30 | 2016-12-30 | Live broadcast time shifting scheme based on hls protocol |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109413443A (en) * | 2017-08-16 | 2019-03-01 | 中国移动通信有限公司研究院 | A kind of implementation method and device of time-shifting function |
| CN110881146A (en) * | 2019-09-12 | 2020-03-13 | 北京阳光云视科技有限公司 | Time shifting system based on slice mode |
| CN114173145A (en) * | 2021-12-08 | 2022-03-11 | 四川启睿克科技有限公司 | HLS protocol-based dynamic code rate low-delay live broadcast method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109413443A (en) * | 2017-08-16 | 2019-03-01 | 中国移动通信有限公司研究院 | A kind of implementation method and device of time-shifting function |
| CN109413443B (en) * | 2017-08-16 | 2021-03-16 | 中国移动通信有限公司研究院 | Method and device for realizing time shifting function |
| CN110881146A (en) * | 2019-09-12 | 2020-03-13 | 北京阳光云视科技有限公司 | Time shifting system based on slice mode |
| CN114173145A (en) * | 2021-12-08 | 2022-03-11 | 四川启睿克科技有限公司 | HLS protocol-based dynamic code rate low-delay live broadcast method |
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Address after: 310000 E, 16 floor, A block, Paradise software garden, 3 West Gate Road, Xihu District, Hangzhou, Zhejiang. Applicant after: Hangzhou Dang Hong Polytron Technologies Inc Address before: 310000 E, 16 floor, A block, Paradise software garden, 3 West Gate Road, Xihu District, Hangzhou, Zhejiang. Applicant before: HANGZHOU DANGHONG TECHNOLOGY CO., LTD. |
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Application publication date: 20170510 |